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  Indian J Med Microbiol
 

Figure 1: (a) Regular electrocardiogram in postoperative patient with tachycardia and absent P waves. (b) Epicardial atrial electrocardiogram with atrial pacing wires connected to lead I. Electrocardiogram is performed after regular electrocardiogram (a) demonstrating junctional rhythm with P wave buried in QRS complex. (c) Regular electrocardiogram in same patient after 24 h of management with the return of normal sinus rhythm. (d) Epicardial atrial electrocardiogram for the same patient after 24 demonstrating normal sinus rhythm. P wave appears now magnified and normally preceding each QRS complex

Figure 1: (a) Regular electrocardiogram in postoperative patient with tachycardia and absent P waves. (b) Epicardial atrial electrocardiogram with atrial pacing wires connected to lead I. Electrocardiogram is performed after regular electrocardiogram (a) demonstrating junctional rhythm with P wave buried in QRS complex. (c) Regular electrocardiogram in same patient after 24 h of management with the return of normal sinus rhythm. (d) Epicardial atrial electrocardiogram for the same patient after 24 demonstrating normal sinus rhythm. P wave appears now magnified and normally preceding each QRS complex